V ( X^2 - 12X + 36 ) = V 16
X^2 - 12X + 36 = 16
X^2 - 12X + 20 = 0
D = 144 - 4*1*20 = 144 - 80 = 64 ; V D = 8
X1 = ( 12 + 8 ) : 2 = 10
X2 = ( 12 - 8 ) : 2 = 2
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X^2 - 12X + 36 > 0
D = 144 - 4*1*36 = 144 = 0
X > ( 12 \ 2 ) ; X > 6
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ОТВЕТ: Х = 10 ( ответ Х = 2 не подходит, так как Х > 6 )